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Low-speed torque ripple restraining device and restraining method based on direct current voltage adjustment

A torque pulsation and DC voltage technology, applied in the field of electronic control methods and control devices, can solve problems such as limiting the application range of motors and motor jitter, and achieve the effects of simple structure, suppressing torque pulsation, and reducing size

Inactive Publication Date: 2015-03-11
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Brushless DC motor has the advantages of small size, good performance, simple structure, high reliability, and large output torque. The scope of application of this type of motor

Method used

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  • Low-speed torque ripple restraining device and restraining method based on direct current voltage adjustment
  • Low-speed torque ripple restraining device and restraining method based on direct current voltage adjustment
  • Low-speed torque ripple restraining device and restraining method based on direct current voltage adjustment

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Embodiment Construction

[0020] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] like figure 1 As shown, the present invention provides a low-speed torque ripple suppression device based on DC voltage regulation, which is used for figure 1 The brushless DC motor in the control device is controlled, and the suppression device includes a Buck converter, a voltage-type inverter and a controller (in this embodiment, a single-chip microcomputer is used), wherein the output end of the voltage-type inverter is connected to the brushless DC motor The three-phase winding of the controller, the input end of the controller is connected to the Hall signal output end of the brushless DC motor, and the output end of the controller is respectively connected to the voltage type inverter and the Buck converter to control its working state; The output end of the Buck converter is connected to the input end of the voltage source i...

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Abstract

The invention discloses a low-speed torque ripple restraining device based on direct current voltage adjustment. The low-speed torque ripple restraining device comprises a Buck converter, a voltage type inverter and a controller, wherein the output end of the voltage type inverter is connected with a three-phase winding of a brushless direct current motor; the output end of the controller is connected with a Hall signal output end of the brushless direct current motor; the output end of the controller is connected with each of the voltage type inverter and the Buck converter and is used for controlling working states of the voltage type inverter and the Buck converter; the output end of the Buck converter is connected with the input end of the voltage type inverter. According to the low-speed torque ripple restraining device, torque ripple can be restrained by a mode of adjusting bus voltage. The invention also discloses a restraining method for the low-speed torque ripple restraining device based on the direct current voltage adjustment.

Description

technical field [0001] The invention relates to an electronic control method and a control device, in particular to a device and method for suppressing low-speed torque ripple of a brushless DC motor based on DC voltage regulation. Background technique [0002] Brushless DC motor has the advantages of small size, good performance, simple structure, high reliability, and large output torque. The scope of application of this type of motor. At present, most of the brushless DC motors use the principle of constant DC to realize the operation of the motor, which brings about the generation of torque ripple when the brushless DC motor is running at low speed. The size of the input voltage can play a very good role, and this case arises from it. Contents of the invention [0003] The purpose of the present invention is to provide a low-speed torque ripple suppression device and suppression method based on DC voltage regulation, which can suppress torque ripple by adjusting the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/10
CPCH02P6/10
Inventor 魏海峰张懿
Owner JIANGSU UNIV OF SCI & TECH
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